Astrophotography Camera ZWO ASI290MM-Cool – Cooled Monochrome – NEW

Ideal for:
- High-resolution lunar imaging
- Detailed planetary imaging
- Solar imaging with an appropriate certified solar filter
- Small deep-sky targets
- H-alpha and near-infrared imaging
- Narrowband astrophotography
- Astrophotographers upgrading from an uncooled or colour camera

Key features:
- Back-illuminated Sony IMX290 monochrome CMOS sensor
- High sensitivity for low-light astronomical imaging
- Strong H-alpha and near-infrared response
- Small 2.9 μm pixels for fine image detail
- Very low read noise
- High-speed USB 3.0 capture
- Regulated two-stage TEC cooling
- Cooling performance of approximately 35–40°C below ambient
- 1.25-inch and T2 telescope compatibility
- Compatible with Windows, macOS and Linux
- ZWO drivers and astronomy capture software available online

Technical specifications:
- Sensor: Sony IMX290 back-illuminated monochrome CMOS
- Sensor format: 1/2.8 inch
- Sensor dimensions: approximately 5.6 × 3.2 mm
- Resolution: 1936 × 1096 pixels
- Effective resolution: approximately 2.1 MP
- Pixel size: 2.9 μm
- Exposure range: 32 μs to 2000 seconds
- Maximum frame rate: up to 170 fps
- Read noise: approximately 1.0–3.2 e−
- ADC: 12-bit
- Interface: USB 3.0 / USB 2.0
- Telescope connection: 1.25 inch / T2
- Cooling: Regulated two-stage TEC
- Cooling capacity: approximately 35–40°C below ambient
- Cooler requirement: 12 V, 2 A maximum
- Back-focus distance: 17.5 mm
- Diameter: 78 mm
- Weight: approximately 410 g
- Sensor window: AR-coated

Included in the box:
- ZWO ASI290MM-Cool camera body
- Original padded ZWO carrying case
- USB 3.0 cable
- Two 0.5 m USB 2.0 cables
- 1.25-inch nosepiece
- 1.25-inch protective cover
- Original box and supplied accessories

Not included:
- 12 V power adapter

Condition:
- Unused
- Never installed on a telescope
- Never used for imaging
- Original box, case, cables and accessories
- Genuine ZWO product
- Discontinued cooled monochrome model

Take your astrophotography to the next level with the ZWO ASI290MM-Cool, a sensitive, high-speed monochrome astronomy camera designed for capturing fine detail in the Moon, planets and smaller deep-sky objects.

The ASI290MM-Cool features a back-illuminated Sony IMX290 CMOS sensor. Its back-illuminated design improves light collection by positioning the sensor wiring away from the light-sensitive surface, helping deliver high sensitivity and strong performance in low-light astronomical imaging. It also offers enhanced sensitivity in the H-alpha and near-infrared regions.

Its combination of small 2.9 μm pixels, high frame rates and very low read noise makes it especially suitable for capturing fine detail. High-speed imaging allows many frames to be recorded in a short period, helping planetary imagers select and stack the sharpest frames obtained during moments of better atmospheric seeing.

Unlike an uncooled camera, the ASI290MM-Cool includes regulated two-stage TEC cooling, capable of reducing the sensor temperature by approximately 35–40°C below ambient temperature. This helps control thermal noise during longer exposures and provides more consistent imaging conditions.

As a monochrome camera, it offers greater sensitivity and effective detail capture than an equivalent one-shot colour camera. It can be used for high-quality black-and-white imaging or combined with suitable filters and a filter wheel to produce colour or narrowband images.

Important information:
- This is a monochrome camera. Colour imaging requires appropriate filters and usually a filter wheel.
- A compatible external 12 V power supply is required to operate the TEC cooler.
- An IR-cut filter should be used when near-infrared sensitivity is not desired.
- Available for inspection before purchase. Buyers are welcome to verify the camera, packaging and included accessories in person.